diff --git a/testapp/requirements.txt b/testapp/requirements.txt
index d4fb31f..976d3fd 100644
--- a/testapp/requirements.txt
+++ b/testapp/requirements.txt
@@ -2,4 +2,4 @@
 pytest==7.2.0
 pytest-cov==4.0.0
 pytest-django==4.5.2
-black==24.4.2
+black==26.3.1